Trevor, what's your budget? Cuz the question your asking is way to broad.
Tell me what do you look for?
Just tv? touchscreen? mp3/dvd/vcd/SD? What are the features you look for?
Cuz I tell you, if you have enough coin, buy a Jensen VM9511TS. All good reviews on this forum for that unit and I can personally agree cuz I have one to.
I work at a car electronics/customizing/mechanics shop and I know virtually every unit out there, I can give you price and everything.